Stufin
Home Quick Cart Profile

MB27M - Maruti 27mm Musical Buzzer

MB27M - Maruti 27mm Musical Buzzer MB27M - Maruti 27mm Musical Buzzer
Buy Now

Component Description

MB27M - Maruti 27mm Musical Buzzer

Overview

The MB27M, also known as the Maruti 27mm Musical Buzzer, is a type of electro-magnetic buzzer designed to produce a wide range of tones and melodies. This compact component is widely used in various applications, including toys, alerts, alarms, and musical instruments.

Functionality

The MB27M is an active buzzer that requires an external power supply to operate. When an electrical signal is applied to the buzzer, the electromagnetic coil inside the device vibrates, producing sound waves. The frequency of the sound wave is determined by the input signal, allowing the buzzer to produce different tones and melodies.

Key Features

  • Size and Shape: The MB27M has a compact, cylindrical shape with a diameter of 27mm and a height of 12mm, making it suitable for use in space-constrained applications.
  • Operating Voltage: The buzzer operates at a voltage range of 2-12V, with a maximum current rating of 30mA.
  • Frequency Range: The MB27M is capable of producing sound frequencies between 200Hz and 4kHz, allowing for a wide range of tones and melodies.
  • Sound Pressure Level: The buzzer has a sound pressure level of up to 85dB, making it suitable for applications requiring a moderately loud sound output.
  • Polarity: The MB27M does not have polarity, meaning it can be connected in either direction without affecting its operation.
  • Durability: The buzzer has a long lifespan, with a minimum of 10,000 cycles of operation guaranteed.
  • Mounting Options: The MB27M can be mounted using a variety of methods, including through-hole mounting, surface-mount technology (SMT), and adhesive bonding.
  • Environmental Operating Range: The buzzer operates within a temperature range of -20C to 70C, making it suitable for use in a variety of environmental conditions.

Applications

  • Toy and game development
  • Alert and alarm systems
  • Musical instruments and equipment
  • Industrial and commercial applications
  • Medical devices and equipment
  • Automotive systems
The MB27M is commonly used in various applications, including

Conclusion

The MB27M - Maruti 27mm Musical Buzzer is a versatile and reliable component suitable for a wide range of applications. Its compact size, low power consumption, and ability to produce a wide range of tones and melodies make it an ideal choice for designers and engineers.

Pin Configuration

  • MB27M - Maruti 27mm Musical Buzzer
  • The MB27M is a 27mm musical buzzer designed for various IoT applications. This component is a self-driven buzzer, meaning it has a built-in oscillator and driver circuit, making it easy to use and integrate into your projects.
  • Pinout Description:
  • The MB27M has four pins, which are described below:
  • Pin 1: VCC ( Positive Power Supply)
  • Function: Provides power to the buzzer
  • Recommended Voltage: 2-5V DC
  • Connection: Connect to a positive DC power supply (e.g., a battery or a power source from a development board)
  • Pin 2: GND (Ground)
  • Function: Grounds the buzzer
  • Connection: Connect to the ground of the power supply or the ground of the development board
  • Pin 3: SIG (Signal Input)
  • Function: Input signal for tone generation
  • Connection: Connect to a digital output pin of a microcontroller or a development board
  • Notes:
  • + A logical high (1) on this pin will produce a tone
  • + A logical low (0) on this pin will silence the buzzer
  • + The frequency of the tone can be controlled by the frequency of the input signal
  • Pin 4: NO CONNECTION (Reserved)
  • Function: No connection is required for this pin
  • Notes: This pin is reserved for internal use and should not be connected to any external components
  • Connection Structure:
  • To connect the MB27M to a microcontroller or development board, follow these steps:
  • 1. Connect Pin 1 (VCC) to a positive DC power supply (e.g., a battery or a power source from a development board)
  • 2. Connect Pin 2 (GND) to the ground of the power supply or the ground of the development board
  • 3. Connect Pin 3 (SIG) to a digital output pin of a microcontroller or development board
  • 4. Leave Pin 4 (NO CONNECTION) unconnected
  • Example Connection Diagram:
  • Here's an example connection diagram using an Arduino Uno board:
  • Arduino Uno | MB27M
  • ----------------|-----------
  • 5V | VCC (Pin 1)
  • GND | GND (Pin 2)
  • Digital Pin 13 | SIG (Pin 3)
  • N/C | NO CONNECTION (Pin 4)
  • Remember to consult the datasheet for your specific microcontroller or development board for specific connection guidelines.

Code Examples

MB27M - Maruti 27mm Musical Buzzer Documentation
Overview
The MB27M is a 27mm musical buzzer designed for a wide range of applications, including IoT projects, robotics, and automation. It produces a melodious sound when an electrical signal is applied to it. This component is ideal for alert systems, sound indicators, and entertainment applications.
Technical Specifications
Operating Voltage: 3-24V DC
 Current Consumption: 20-40mA
 Frequency Range: 2.1KHz - 4.5KHz
 Sound Level: 85dB (Min)
 Diameter: 27mm
 Height: 10mm
 Weight: 10g
Pinout
The MB27M has two pins:
Pin 1: Positive Terminal (VCC)
 Pin 2: Negative Terminal (GND)
Code Examples
### Example 1: Simple Buzzer Using Arduino
In this example, we will connect the MB27M to an Arduino board to produce a simple beep sound.
Hardware Requirements
Arduino Board (e.g., Arduino Uno)
 MB27M Musical Buzzer
 Breadboard
 Jumper Wires
Software Requirements
Arduino IDE
Code
```c++
const int buzzerPin = 9; // Connect the positive terminal to digital pin 9
void setup() {
  pinMode(buzzerPin, OUTPUT);
}
void loop() {
  digitalWrite(buzzerPin, HIGH); // Produce a 2.1KHz sound
  delay(500); // Beep for 0.5 seconds
  digitalWrite(buzzerPin, LOW);
  delay(500); // Pause for 0.5 seconds
}
```
### Example 2: IoT Alert System using Raspberry Pi and Python
In this example, we will create an IoT alert system using a Raspberry Pi and the MB27M to produce a warning sound when a specific condition is met.
Hardware Requirements
Raspberry Pi (e.g., Raspberry Pi 4)
 MB27M Musical Buzzer
 Breadboard
 Jumper Wires
 Sensors (e.g., temperature sensor, motion sensor)
Software Requirements
Python 3.x
 Raspbian OS
Code
```python
import RPi.GPIO as GPIO
import time
# Set up the GPIO library
GPIO.setmode(GPIO.BCM)
# Define the buzzer pin
buzzer_pin = 18
# Set up the buzzer pin as an output
GPIO.setup(buzzer_pin, GPIO.OUT)
# Define a function to produce a sound
def produce_sound():
  GPIO.output(buzzer_pin, GPIO.HIGH)
  time.sleep(0.5) # Beep for 0.5 seconds
  GPIO.output(buzzer_pin, GPIO.LOW)
# Main program
while True:
  # Read sensor data (e.g., temperature, motion)
  sensor_data = ...  # Replace with your sensor reading code
  
  # Check if the condition is met (e.g., high temperature, motion detected)
  if sensor_data > threshold:
    produce_sound()  # Produce a warning sound
  time.sleep(1)  # Check again after 1 second
```
These examples demonstrate the basic usage of the MB27M musical buzzer in different contexts. You can modify the code to fit your specific requirements and applications.